extension and modification of holy mother primary school at bktpp , earth work in excavation of oundation trenches or drains , in all sorts of soil ( including mixed soil but excluding laterite or sandstone ) including removing , spreading or stacking the spoils within a lead of 75 m . as directed . the item includes necessary trimming the sides of trenches , levelling , dressing and ramming the bottom , bailing out water as required complete . a ) depth of excavation not exceeding 1 , 500 mm . , earth work in filling in foundation renches or plinth with good earth , in layers not exceeding 150 mm . including watering and ramming etc . layer by layer complete . ( payment to be made on the basis of measurement of finished quantity of work ) . a ) with earth obtained from excavation of foundation , filling in foundation or plinth by fine sand in layers not exceeding 150 mm as directed and consolidating the same by thorough saturation with water , ramming complete including the cost of supply of sand . ( payment to be made on measurement of finished quantity ) , supplying and laying polythene sheet ( 150gm / sq . m . ) over damp proof course or below flooring or roof terracing or in foundation or in foundation trenches . , cement concrete with graded stone ballast ( 40 mm size excluding shuttering ) . in ground floor . ( a ) [ pakur variety ] . i ) 1:3:6 proportion , ordinary cement concrete ( mix 1:1 . 5:3 ) with graded stone chips ( 20 mm nominal size ) excluding shuttering and reinforcement if any , in ground floor as per relevant is codes . a ) pakur variety , hire and labour charges for shuttering with centering and necessary staging upto 4 m using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs , beams and columns , lintels curved or straight including fitting , fixing and striking out after completion of works ( upto roof of ground floor ) a ) 25 mm to 30 mm thick wooden shuttering as per decision & direction of engineer-in-charge , reinforcement for reinforced concrete work in all sorts of structures including distribution bars , stirrups , binders etc initial straightening and removal of loose rust ( if necessary ) , cutting to requisite length , hooking and bending to correct shape , placing in proper position and binding with 16 gauge black annealed wire at every intersection , complete as per drawing and direction . a ) for works in foundation and upto roof of ground floor / upto 4 m . tor steel / mild steel . i ) sail / tata / rinl , plaster ( to wall , floor , ceiling etc . ) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating , nosing and drip course , scaffolding / staging where necessary ( ground floor ) . [ excluding cost of chipping over concrete surface ] a ) with 1:6 cement mortar . i ) 20 mm thick plaster , plaster ( to wall , floor , ceiling etc . ) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating , nosing and drip course , scaffolding / staging where necessary ( ground floor ) . [ excluding cost of chipping over concrete surface ] a ) with 1:4 cement mortar . i ) 10 mm thick plaster , brick work with fly ash bricks set in cement sand mortar ( 1:6 ) including raking out joints , curing , scaffolding etc . complete in all respect . a ) in ground floor , half thick brick work with fly ash bricks set in cement sand mortar ( 1:4 ) including raking out joints , curing , scaffolding etc . complete in all respect . ( a ) in ground floor , artificial stone in floor , dado , staircase etc with cement concrete ( 1:2:4 ) with stone chips , laid in panels as directed with topping made with ordinary or white cement ( as necessary ) and marble dust in proportion ( 1:2 ) including smooth finishing and rounding off corners including raking out joints or roughening of concrete surface and application of cement slurry before flooring works using cement @ 1 . 75 kg / sq . m all complete including all materials and labour . in ground floor . 3 mm . thick topping ( high polishing grinding on this item is not permitted with ordinary cement ) . using grey cement . a ) 35 mm . thick , 25mm . thick damp proof course with cement concrete with stone chips ( 1:1 . 5:3 ) [ with graded stone aggregate 10 mm nominal size ] and admixture of water proofing compound as per manufacturers specification followed by two coat of polymer based paint , ( 1st coat after 4 to 5 days of concrete laying and 2 nd coat just before brick masonry work ) as directed ( cost of water proofing compound & polymer based paint to be paid separately ) . ( chequering not required over concrete or painted surface ) . , neat cement punning about 1 . 5mm thick in wall , dado , window sill , floor etc . note:cement 0 . 152 cu . m per100 sq . m . , applying exterior grade acrylic primer of approved quality and brand on plastered or cencrete surface old or new surface to receive decorative textured ( matt finish ) or smooth finish acrylic exterior emulsion paint including scraping and preparing the surface throughly , complete as per manufacturers specification and as per direction of the eic . a . one coat , protective and decorative acrylic exterior emulsion paint of approved quality , as per manufacturers specification and as per direction of engineer-in-charge to be applied over acrylic primer as required . the rate includes cost of material , labour , scaffolding and all incidental charges but excluding the cost of primer . a ) premium 100% acrylic emulsion , priming one coat on timber or plastered or metalled surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc . , painting with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand papering etc . including using of approved putty etc . on the surface , if necessary : on timber or plastered or metalled surface : with super gloss ( hi-gloss ) #a ) two coats ( with any shade except white ) , white washing including cleaning and moothening surface thoroughly all floors : a ) three coats ( on new works only ) . , supplying , fitting , fixing fly / mosquito proof nylon net on any type of window , door shutter frame with necessary fixing arrangements complete . , supplying , fitting and fixing windows and ventilators with or without integrated grills conforming to is 1038-1975 and manufactured from rolled steel sections conforming to is 7452-1974 with non-friction projecting type , box type hinges , glazing clips , lugs locking bracket , handle plate etc , including hoisting in position , straightening if required , fixing lugs in cement concrete ( 1:2:4 ) with stone chips 20 mm down cutting holes and mending good damages to match with existing surface complete in all respect excluding glazing . in ground floor a ) openable steel windows as per is sizes with side hung shutters and horizontal glazing bars . , two point nose steel handle including fitting and fixing . , steel peg stay 300 mm long including fitting and fixing . , supplying best indian figured glass viz . hammered , fluted , ribbed , pinhead etc . type including cutting to required sizes , setting on putty bases and fitted and fixed with nails and putty complete . ( in all floors for internal wall & upto 6 m height for external wall ) ( i ) 3 mm thick ( white ) , wood work in door and window frame fitted and fixed in position complete including a protective coat of painting at the contact surface of the frame excluding cost of concrete , iron butt hinges and m . s clamps . ( the quantum should be corrected upto three decimals ) . i ) sal : local . , supplying solid flush type doors of deluxe deco